Joined: Tue Aug 11, 2009 11:49 pmPosts: 38Location: Tasmania, the Land Down Under, the Land Downunder!

Upsized Holonomic NXTing

I built this LEGO Mindstorms NXT Robot to celebrate a package that arrived in the post a few days ago from Rotacaster® Omni-wheels Australia. Yes, more omni-wheels to' Beta Test'. But these are monsters compared to the original 48mm (2") Rotacaters.

These new Rotacaster® measure 125mm (5") in diameter, and weigh in at 272g (0.6lb) compared with the small ones that only weighed 37g. Both sizes us a standard LEGO Technic Axel whole. These Rotacaster®'s provide unlimited manoeuvrability and bring a whole new dimension of possibilities to the design and functionality of large wheeled LEGO Mindstorms NXT Robots.

As mentioned above, these new 125mm Omni-wheels from Rotacaster® Omni-wheels will allow you to construct robots that break away from the confines of indoor surfaces. Like the smaller 48mm [rotacasters], the quality is excellent. With a dynamic load capacity of 115kgs and a lateral load of 68Kgs, your LEGO Parts will fail before the wheels will. Due to the roller size, these Rotacaster® Omni-wheels a quite noisy compared with the smaller wheels when travelling on hard surfaces.

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